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Over-Voltage Protection Switch

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Manufacturer's part number
:

AAT4687IJQ-1-T1

Manufacturer

Skyworks

Description
:

The AAT4687 OVPSwitch™ is a member of Skyworks' Application Specific Power MOSFET™ (ASPM™) product family. It is a P-channel MOSFET power switch with precise over-voltage protection control, designed to protect low-voltage systems against high-voltage faults up to +28V. If the input voltage exceeds the programmed over-voltage threshold, the P-channel MOSFET switch will be turned off to prevent the output load circuits from damage. The AAT4687 is available with an internally programmed over-voltage trip point or as an adjustable version programmed by two external resistors.

The AAT4687 includes an under-voltage lockout (UVLO) protection circuit, which will put the device into sleep mode at low input voltages only consuming < 1μA of current. The AAT4687 also includes an enable pin (EN) to enable or disable the device and an OVP, OTP fault indicator (FLT).

The AAT4687 is offered in a small Pb-free, 10 pin SC70JW package, and is specified for operation over the -40°C to +85°C ambient temperature range.